名称:
A new method for enhancing the production of the negatively charged helium dimer He2−
摘要:
The production of the negatively charged helium dimer He-2(-) can be enhanced by nearly an order of magnitude by utilizing laser excited alkali metals as charge-exchange material for fast He-2(+) ions. The enhancement can be attributed to both steps in the charge-exchange reactions converting He-2(+) via He-2 (a(3) Sigma(u)(+)) to He-2(-) ((4) Pi(g)).
DOI:
10.1016/0009-2614(95)00669-u